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Cheap flights from Seattle to Ireland from €214

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 21/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
23:25 - 13:15
SEA
-
DUB
29h 50m
1 stop
Icelandair Logo
14:15 - 11:45
DUB
-
SEA
29h 30m
1 stop
€634Icelandair
Thu, 20 Aug - Thu, 27 Aug
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
€634Icelandair
Fri, 9 Oct - Tue, 13 Oct
Multiple Airlines Logo
19:00 - 10:30
SEA
-
DUB
31h 30m
3 stops
Multiple Airlines Logo
10:40 - 09:40
DUB
-
SEA
31h 00m
2 stops
€638Multiple Airlines
Mon, 24 Aug - Wed, 9 Sep
Multiple Airlines Logo
15:40 - 08:20
SEA
-
DUB
32h 40m
3 stops
Multiple Airlines Logo
06:40 - 17:55
DUB
-
SEA
19h 15m
2 stops
€640Multiple Airlines
Mon, 5 Oct - Mon, 12 Oct
United Airlines Logo
05:00 - 10:15
SEA
-
SNN
21h 15m
2 stops
United Airlines Logo
12:30 - 23:36
SNN
-
SEA
19h 06m
1 stop
€709United Airlines
Sun, 23 Aug - Tue, 8 Sep
United Airlines Logo
23:00 - 07:30
SEA
-
SNN
24h 30m
1 stop
United Airlines Logo
12:30 - 23:36
SNN
-
SEA
19h 06m
1 stop
€711United Airlines
Sun, 23 Aug - Tue, 8 Sep
Delta Logo
13:30 - 14:40
SEA
-
ORK
17h 10m
1 stop
Delta Logo
05:40 - 11:47
ORK
-
SEA
14h 07m
1 stop
€807Delta
Tue, 13 Oct - Mon, 2 Nov
Delta Logo
11:50 - 14:40
SEA
-
ORK
18h 50m
2 stops
Delta Logo
05:40 - 11:47
ORK
-
SEA
14h 07m
1 stop
€811Delta
Tue, 13 Oct - Mon, 2 Nov
Lufthansa Logo
14:10 - 16:30
SEA
-
ORK
18h 20m
1 stop
Lufthansa Logo
17:05 - 18:32
ORK
-
SEA
33h 27m
2 stops
€849Lufthansa
Sun, 4 Oct - Mon, 19 Oct
Lufthansa Logo
14:10 - 16:30
SEA
-
ORK
18h 20m
1 stop
Lufthansa Logo
17:05 - 12:20
ORK
-
SEA
27h 15m
1 stop
€851Lufthansa
Sun, 4 Oct - Mon, 19 Oct

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TAP AIR PORTUGAL flights from Seattle to Ireland

Our best TAP AIR PORTUGAL deals on Seattle to Ireland flight tickets
TAP AIR PORTUGAL
10 Oct
SEA23:55Seattle/Tacoma Intl
34h 10m
2 stops
DUB18:05Dublin
17 Oct
DUB10:45Dublin
43h 53m
2 stops
SEA22:38Seattle/Tacoma Intl
€643
TAP AIR PORTUGAL
5 Sept
SEA23:40Seattle/Tacoma Intl
34h 25m
2 stops
DUB18:05Dublin
13 Sept
DUB18:50Dublin
59h 48m
2 stops
SEA22:38Seattle/Tacoma Intl
€663

United Airlines flights from Seattle to Ireland

Our best United Airlines deals on Seattle to Ireland flight tickets
United Airlines
1 Sept
SEA07:00Seattle/Tacoma Intl
16h 20m
2 stops
DUB07:20Dublin
18 Sept
DUB09:30Dublin
21h 56m
3 stops
SEA23:26Seattle/Tacoma Intl
€649
United Airlines
23 Aug
SEA05:00Seattle/Tacoma Intl
21h 15m
2 stops
SNN10:15Shannon
8 Sept
SNN12:30Shannon
19h 06m
1 stop
SEA23:36Seattle/Tacoma Intl
€709
United Airlines
23 Aug
SEA23:00Seattle/Tacoma Intl
24h 30m
1 stop
SNN07:30Shannon
8 Sept
SNN12:30Shannon
19h 06m
1 stop
SEA23:36Seattle/Tacoma Intl
€711

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 25 July 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 20/8

23:25-13:15

1 stop29h 50m

Dublin

Thu 27/8

14:15-11:45

1 stop29h 30m

€634
Fastest return journey

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 9/10

15:40-13:15

1 stop13h 35m

Dublin

Tue 13/10

14:15-20:40

1 stop14h 25m

€634

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 24/8

19:00-10:30

3 stops31h 30m

Dublin

Wed 9/9

10:40-09:40

2 stops31h 00m

€638

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 5/10

15:40-08:20

3 stops32h 40m

Dublin

Mon 12/10

06:40-17:55

2 stops19h 15m

€640

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 23/8

05:00-10:15

2 stops21h 15m

Shannon

Tue 8/9

12:30-23:36

1 stop19h 06m

€709

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 23/8

23:00-07:30

1 stop24h 30m

Shannon

Tue 8/9

12:30-23:36

1 stop19h 06m

€711

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Tue 13/10

13:30-14:40

1 stop17h 10m

Cork

Mon 2/11

05:40-11:47

1 stop14h 07m

€807

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Tue 13/10

11:50-14:40

2 stops18h 50m

Cork

Mon 2/11

05:40-11:47

1 stop14h 07m

€811

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 4/10

14:10-16:30

1 stop18h 20m

Cork

Mon 19/10

17:05-18:32

2 stops33h 27m

€849

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 4/10

14:10-16:30

1 stop18h 20m

Cork

Mon 19/10

17:05-12:20

1 stop27h 15m

€851

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from Seattle averaging around €453.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight from Seattle to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €601 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €531 on momondo.

What cabin class options are available on Seattle to Ireland flights?

There is only 1 cabin class available to choose from on Seattle to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

No. A direct flight is the cheapest option for a flight between Seattle to Ireland.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 05m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. Airline offering direct flights is Aer Lingus..
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

Frequently asked questions about flying from Seattle to Ireland

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €39
Flights to Corkfrom €86
Flights to Shannon, Clarefrom €84
Flights to Milltown (Kerry)from €37
Flights to Donegalfrom €76